Home / 400,913,643.48-601,382,906.82-190,778,285.40

Finding the Fourth Proportional to 400,913,643.48, 601,382,906.82 and 190,778,285.40

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Solution

The fourth proportional to 400,913,643.48, 601,382,906.82 and 190,778,285.40 is: 286,173,348.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,913,643.48 : 601,382,906.82 = 190,778,285.40 : x
  2. Step 2: Convert to fraction form
    400,913,643.48/601,382,906.82 = 190,778,285.40/x
  3. Step 3: Cross multiply
    400,913,643.48x = 601,382,906.82 × 190,778,285.40
  4. Step 4: Simplify right side
    400,913,643.48x = 114,730,799,831,987,584
  5. Step 5: Solve for x
    x = 114,730,799,831,987,584/400,913,643.48
  6. Step 6: Final answer
    x = 286,173,348.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.